Jesse James and Sandra Bullock

The most dramatic celebrity split of the year was that of actress Sandra Bullock and motorcycle-builder Jesse James. They wed in 2005, and in 2010, were in the process of adopting a son when it was revealed that James had had an affair with tattoo model Michelle "Bombshell" McGee. The couple divorced and Bullock went on to adopt the baby boy, Louis, on her own.

Part of the uproar around the divorce came from the fact that Bullock had won the best actress Oscar, for her role in "The Blind Side," just weeks before the affair was announced. She attended the ceremony with James.
(Alberto E. Rodriguez / Getty Images)
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Charlie Sheen and Brooke Mueller

Actor Charlie Sheen and wife Brooke Mueller are divorcing after a tumultuous and short relationship. Their twin sons were born in 2009, and later that year, Sheen was arrested on charges of domestic violence against Mueller.

He entered rehab in 2010, but in October was involved in an altercation at the Plaza Hotel in New York. He filed for divorce from Mueller in November 2010.
(Frazer Harrison / Getty Images)
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Courteney Cox and David Arquette

Actress Courteney Cox and actor David Arquette wed in 1999 and welcomed daughter Coco in 2004. The couple announced in 2010 that they are separating, but maintain a close relationship.
(Frazer Harrison / Getty Images)
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Tony Parker and Eva Longoria

Basketball player Tony Parker and "Desperate Housewives" star Eva Longoria were perhaps one of Hollywood's most photographed couples. They wed in 2007, and she got two tattoos to commemorate the event -- their wedding date (7-7-07) in Roman numerals and Parker's jersey number (9). No word on whether she will have them removed now that Longoria has filed for divorce.

The divorce may have come about due to reports that Parker had sent hundreds of text messages to the wife of a former teammate.
(Pascal Le Segretain / Getty Images for IWC Schaffhause)
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Jake Pavelka and Vienna Girardi

Jake Pavelka proposed to Vienna Girardi on national television on "The Bachelor." Fans of the show loudly voiced their disapproval, with many noting that none of the other women on the show liked Girardi either. The couple broke up in 2010.
(Jamie Mccarthy / Getty Images for Montblanc)
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Kim Kardashian and Reggie Bush

Reality star Kim Kardashian and NFL player Reggie Bush began dating in 2007 after quarterback Matt Leinart, a former USC teammate of Bush's, introduced them. They broke up in 2009, got back together and split again in 2010.
(Gustavo Caballero / Getty Images for Rush Philanthro)
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Mel Gibson and Oksana Grigorieva

Actor Mel Gibson and Oksana Grigorieva had one of the most dramatic splits of 2010. Gibson had seven children with his first wife, Robyn, and was married to her for 26 years, divorcing in 2009.

Gibson, a traditionalist Catholic, did not marry Grigorieva, but they had a daughter, Lucia, in 2009. The couple split in 2010 and became involved in a heated legal battle that included recordings Grigorieva had made of Gibson uttering racial and other slurs.
(Juan Medina / Reuters)
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LeAnn Rimes and Dean Sheremet

Country star LeAnn Rimes and Dean Sheremet wed in 2002. In 2009, Rimes had a well-publicized affair with Eddie Cibrian, who co-starred with her in the movie "Northern Lights." Cibrian was married and the father of two children, but left his wife for Rimes.

Rimes and Sheremet's divorce was final in 2010. She has said she was sorry people were hurt by the situation, but has no regrets about the outcome of the affair.
(Rick Diamond / Getty Images)
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Al and Tipper Gore

Americans still remember the romantic public smooch Al and Tipper Gore shared at the 2000 Democratic National Convention. That combined with the fact that the couple had been married for 40 years and raised four children to adulthood meant the news that they were separating in 2010 came as a shock to many.
(Andrew H. Walker / Getty Images)
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Anna Torv and Mark Valley

Avril Lavigne and Deryck Whibley

Singer Avril Lavigne and Sum 41 singer and guitarist Deryck Whibley are divorcing after three years of marriage, but continue to work together. He is producing her fourth album.
(Theo Wargo / WireImage)
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Billy Ray and Tish Cyrus

Country singer Billy Ray Cyrus and his wife Tish, parents of teen star Miley Cyrus, announced they are divorcing after 18 years of marriage. Tabloid reports around the time of the split announcement had Tish Cyrus hooking up with Poison rocker Bret Michaels. He denied the reports.
(Jason Merritt / Getty Images)
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Rebecca Budig and Bob Guiney

Soap-opera star Rebecca Budig and her husband, Bob Guiney, who once starred on "The Bachelor," divorced after six years of marriage.
(Ethan Miller / Getty Images for BASE Entertainm)
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Rachel Weisz and Darren Aronofsky

Actress Rachel Weisz, left, and director Darren Aronofsky have a son, Henry, who was born in 2006. They announced in 2010 that they are separating but remain committed to raising their son together.
(Dan Steinberg / AP file)
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Emmy Rossum and Adam Duritz

Actress Emmy Rossum and Counting Crows frontman Adam Duritz began dating after she toured with the band in 2009. They broke up in 2010.
(Neilson Barnard / Getty Images)
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George and Ann Lopez

Ann Lopez filed for divorce from comedian George in 2010 after 17 years of marriage and one daughter. Reportedly, the decision was amicable.
(Michael Buckner / Getty Images)
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Halle Berry and Gabriel Aubry

Actress Halle Berry and model Gabriel Aubry never married, but had a daughter together in 2008. They split up in 2010. Aubry later briefly dated reality star Kim Kardashian, but they also split.
(Stephen Lovekin / Getty Images)
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Hayden Christensen and Rachel Bilson

Actors Hayden Christensen and Rachel Bilson became engaged in 2008, broke up in August 2010, and now reportedly are dating again.
(Michael Loccisano / Getty Images for GQ Magazine)
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Jennifer Jason Leigh and Noah Baumbach

Actress Jennifer Jason Leigh and director Noah Baumbach wed in 2005 and had son Rohmer in 2010, when she was 48. She filed for divorce later that year.
(Bryan Bedder / Getty Images)
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Jenny McCarthy and Jim Carrey

Kate Winslet and Sam Mendes

British actress Kate Winslet and director Sam Mendes wed in 2003 and have one son, Joe. They announced a separation in 2010. Winslet also has a daughter, Mia, by her earlier marriage to director Jim Threapleton.
(Matt Sayles / AP file)
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Kelly Osbourne and Luke Worrall

Singer Kelly Osbourne and model Luke Worrall were engaged in 2009, but broke up in 2010. Her parents, Sharon and rocker Ozzy Osbourne, advised the couple to wait to wed, since Worrall wasn't even 21. But Kelly and Luke later broke up anyway in 2010, going on to fight on their respective Facebook pages after the split.
(Jason Merritt / Getty Images)
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Kelsey and Camille Grammer

"Frasier" star Kelsey Grammer and wife Camille wed in 1997 and had two children via a surrogate mother before she filed for divorce in 2010. She now appears on Bravo's "Real Housewives of Beverly Hills." He is engaged to be married for the fourth time, this time to 29-year-old Kayte Walsh.
(Stephen Lovekin / Getty Images for 20th Century Fo)
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Shawn and Larry King

CNN talk-show host Larry King has been married seven times, and wed Shawn Southwick in 1997. In 2010, they filed for divorce, but then stopped the proceedings. They have two children together. Larry King is 77, Shawn Southwick King is 51.
(Chad Buchanan / Getty Images)
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Laura Dern and Ben Harper

Actress Laura Dern and musician Ben Harper wed in 2005 and have two children together. He filed for divorce in 2010, but reports in December indicate the two may be trying to work things out.
(Matt Sayles / AP)
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Melissa Etheridge and Tammy Lynn Michaels

Singer Melissa Etheridge wed Tammy Lynn Michaels in 2003, although they chose not to make the marriage legal during the brief period in 2008 when California allowed same-sex marriage. Michaels gave birth to twins via an anonymous sperm donor in 2006. The couple announced their separation in 2010.
(Mark Mainz / Getty Images)
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Neve Campbell and John Light

Actors Neve Campbell and John Light wed in 2007 and lived together in London for five years. She filed for divorce in 2010.
(Gareth Cattermole / Getty Images)
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Thomas Jane and Patricia Arquette

Actors Thomas Jane and Patricia Arquette wed in 2006 and have a daughter, Harlow, born in 2003. Arquette filed for divorce in 2009, but the couple then reconciled. In 2010, it was announced that they were again seeking a divorce.
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Ryan Phillippe and Abbie Cornish

Actors Ryan Phillippe and Abbie Cornish began dating in 2007 after meeting while working together on the 2008 film "Stop-Loss." They split in 2010.
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Michael C. Hall and Jennifer Carpenter

Actor Michael C. Hall and Jennifer Carpenter play siblings on "Dexter," but off-screen they were husband and wife, having eloped in 2008. The couple announced in December 2010 that they had filed for divorce. Hall announced in April that he is fully cured of Hodgkin's lymphoma.
(Ryan Miller / Getty Images Contributor)
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Arun Nayer and Elizabeth Hurley

In December, model and actress Elizabeth Hurley announced via Twitter that she and husband Arun Nayer separated. The announcement followed reports linking her with Australian cricket player Shane Warne.
(Stephen Lovekin / Getty Images)
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Ryan Reynolds and Scarlett Johansson

Actor Ryan Reynolds and actress Scarlett Johansson announced that they were divorcing in December. "We entered our relationship with love and it's with love and kindness we leave it," the couple said in a joint statement.

According to Us magazine, Johansson initiated the split. "The big problem with their relationship is the distance," a source told the magazine. "They spent a lot of time apart when they are working."